code: def is_initialized(cls):
      return hasattr(cls.tls, "instance")
  
imports: import logging
  import threading
  from operator import itemgetter
  from queue import Queue
  import torch
  from torch.distributed import ReduceOp
  from .communicator import Communicator
label_desc: Use image node_id 4 for calling the InProcessCommunicator obj's underlying member method code with example usage: obj.is_initialized(cls) and returns: hasattr